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How to change the Vss on a 2005 Chevrolet Upander?

My 2005 Uplander will slam into gear some times. I have been told it could be the Vehicle Speed sensor. Not sure though. It is not slipping it just slams into gear. I need to know if I have to drop the transmission to get to it or is there an easier way? Or any Ideas what would cause it to slam into gear and yes the fluids are fine.

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To change the license plate light bulb on a 2005 Chevrolet Malibu sedan reach the bulb socket from the inside of the trunk lid. The socket turns a 1/4 turn or so and pulls out. Bulb just pulls straight out of the socket, don't turn it.
if you need a ecu chip tuning tool you can click here: ecu chip tuning tools
hope it can help you and good luck

Posted on Nov 08, 2012


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Posted on Jan 02, 2017

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SOURCE: 1998 4.3l chevrolet transmission started slipping.

Myself I would give the fluid filter change a shot.
If the fluid still looks good then most likely you haven't smoked any clutches. It could just be the filter is clogged and not picking up fluid properly.
Of course it is possible that it is something more serious.
Parts store should be able to hook you up with correct filter and probably capacity.

Posted on Apr 04, 2009

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SOURCE: Car slams in and out of gear between 45-65m.p.h., Starts ruogh..

The switch that tells the computer what gear the car is in is bad. It's located on top of trans and can be replaced fairly easy. If it is white or gray it has been revised to black. Believe it is called range selector switch. About 80.00 at Ford dealer.

Posted on Jun 17, 2009

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SOURCE: no signal from the input speed sensor

Yes you didn't give me code number, with out it my best guess is broken wire at vss sensor near rt drive axle there is a purple wire with a white stripe & a light geen wire with black stripe both in a black conduit pull out & pull on wire gently if they come apart you found it resolder or get new connector at GM dealer

Posted on Sep 07, 2009

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SOURCE: 2001 dodge stratus wont shift

Good Evening, I have a dumb question. have you cleared any current or history codes in the transmission? They will default with codes in the system. Also make note on what they are. If any and we can go from there, and yes tcm would be the next place to go but more info is best as far as codes and such.

Posted on Oct 28, 2010

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SOURCE: My automatic transmission shifts hard (not Slip)

I don't have a solution, but am having the exact same problem with my 2002 s8.. Help..

Posted on Feb 04, 2011

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04 f150 heritage speedo moves but not over 10 mph and trans won't shift gears. i changed all sensors,traced all wires.

taking your vehicle to a qualified reair shop to have it diagnosed would be a good thing to do . You could not have traced all wires ! Because i'm sure you haven't any idea how this works . An a factory scan tool is a must to diagnose this .Do you know what ford SCP data network is ?
The instrument cluster receives the vehicle speed signal from the powertrain control module (PCM) over the standard corporate protocol (SCP) network and displays it on the speedometer gauge. If the instrument cluster receives no vehicle speed signal after one second, the speedometer defaults to 0.0 km/h (0.0 mph).

Vehicle Speed Sensor
The vehicle speed sensor (VSS) (Figure 52) is a variable reluctance or Hall-effect sensor that generates a waveform with a frequency that is proportional to the speed of the vehicle. If the vehicle is moving at a relatively low velocity, the sensor produces a signal with a low frequency. As the vehicle velocity increases, the sensor generates a signal with a higher frequency. The PCM uses the frequency signal generated by the VSS (and other inputs) to control such parameters as fuel injection, ignition control, transmission/transaxle shift scheduling and torque converter clutch scheduling.

P0500 - Vehicle Speed Sensor (VSS) Malfunction Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), the transfer case speed sensor (TCSS) or the anti-lock brake system (ABS) control module. If the engine RPM is above the torque converter stall speed (automatic transmission) and the engine load is high, it can be inferred that the vehicle must be moving. If there is insufficient vehicle speed data input, a malfunction is indicated and a DTC is set. On most vehicle applications the malfunction indicator lamp (MIL) is triggered when this DTC is set.
  • Open in the VSS+/VSS- harness circuit.
  • Open in the TCSS signal or the TCSS signal return harness circuit.
  • Short to GND in the VSS harness circuit.
  • Short to GND in the TCSS harness circuit.
  • Short to PWR in the VSS harness circuit.
  • Short to PWR in the TCSS harness circuit.
  • Damaged drive mechanism for VSS or TCSS.
  • Damaged VSS or TCSS.
  • Damaged wheel speed sensors.
  • Damaged wheel speed sensor harness circuits.
  • Damage in the module(s) connected to the VSC/VSS circuit.
  • Open or short in the vehicle speed circuit VSS signal between the ABS VSS signal output and the VSS signal inputs to the PCM and other modules (Excursion and F-Super Duty).
Monitor the VSS PID while driving vehicle. This DTC is set when the PCM detects a sudden loss of vehicle speed signal over a period of time. If vehicle speed data is lost, check the source of where the vehicle speed input originates from: VSS, TCSS or ABS. Note: On some MSOF applications, VSS and TCSS PID can be monitor. However if no TCSS PID is available and VSS PID is zero, TCSS circuitry frequency must be checked for loss of sensor signal. If another vehicle electronic module has generated the P0500 and the vehicle does not receive its vehicle speed input from one of the above mention sources (VSS, TCSS or ABS). Check the PCM for Output Shaft Speed Sensor (OSS) DTCs. On OSS applications the PCM uses the OSS to calculated the vehicle speed. If no OSS DTCs are found check for correct PCM configuration. Check PCM configuration for correct tire size and axle ratio. P0501 - Vehicle Speed Sensor (VSS) Range/Performance Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. This DTC is set the same way as P0500, however the malfunction indicator lamp (MIL) is not triggered.
  • Refer to possible causes for P0500.
Refer to Diagnostic Aids for P0500. P0503 - Vehicle Speed Sensor (VSS) Intermittent Indicates poor or noisy VSS performance. Vehicle speed data is received from either the vehicle speed sensor (VSS), the transfer case speed sensor (TCSS), or the anti-lock brake system (ABS) control module.
  • Noisy VSS/TCSS input signal from the radio frequency interference / electro-magnetic interference (RFI/EMI) external sources, such as ignition components or the charging circuit.
  • Damaged VSS or driven gears.
  • Damaged TCSS.
  • Damaged wiring harness or connectors.
  • Malfunction in the module(s) or circuit connected to the VSS/TCSS circuit.
  • After market add-on.
Monitor the VSS PID while driving the vehicle. Check for intermittent vehicle speed indication. Verify the ignition and charging system are functioning correctly.

Mar 25, 2017 | Cars & Trucks

1 Answer

Which speed sensor affects the speedometer on 05 trailblazer

It's probably not the VSS - vehicle speed sensor . Does the vehicle shift ok , run good ? The VSS is a input to the PCM - engine computer ,an use's speed info for shift points, fuel control info ,an some other thing's as well . The PCM share's this info over the class 2 serial data bus ! Google GM class 2 serial data bus communication network . GM back in that time had an issue with stepper motor's inside the instrument cluster . Watch this video ! How to repair GM Instrument Cluster Speedometer Gauge Stepper

Aug 19, 2016 | 2005 Chevrolet TrailBlazer

1 Answer

My engine light is on, my speedometer sometimes works and sometimes doesn't register, some times it bounces back and forth.

code p 500 refers to vehicle speed sensor (VSS) --circuit malfunction====causes ---wiring---VSS sensor---ECM
the engine light reports serious faults with both the engine and the transmission
I would go to an accredited auto transmission shop and have the VSS replaced or checked
The VSS drives the speedo, cruise control,gear changes ( reports to the transmission control module (TCM)

Aug 30, 2015 | 2004 Kia Sedona

1 Answer

Transmission snapping when shifting gears( when changes gears)

Could be a problem with the throttle position sensor. It's clearly an electrical issue. Besides the noise, how does the transmission shift? Is it smooth, or does it slam into each gear, or does it seem unusually soft. Shifts should be firm but smooth.

Mar 06, 2014 | 2005 Chevrolet Uplander

1 Answer

06 uplander rpms go up and down when driving on freeway

Probably too late but for other users searching: You probably have the 4T65 transmission like I did. This is the vehicle "hunting" in and out of overdrive on the highway (marked "D" on your dash) and you're probably on level (or close to) ground. You have two options: drive in the gear selection "3" (more fuel consumption though) or change your speed. I used to drop down to 53 MPH and it would stop, or on the highway @ 65 for it to go away.
Seems to be common in this trans around 60 MPH. Also - start saving for another vehicle or repair. This trans will start to slam into 2nd gear from a stop after it warms up (internal solenoid fix required) OR it will shudder horribly from a stop after a highway run. My fix was to replace the solenoid in the trans (there's video on YT) by pulling the right side of the drivetrain off the van and pulling the trans cover. If you go this route - you *must* ensure no -and I mean NO- dirt gets in that tranny while the cover is off.
Good luck!

Feb 16, 2014 | 2006 Chevrolet Uplander

1 Answer

Hey Todd I have a 2005 5.7 dodge magnum and it won't change gears as i speed up while driving also speedometer stopped working

EASY ONE.... Your VSS (Vehicle SPEED SENSOR) stopped working and it is this Sensor that gives the PCM/ECM the information to change gears. Once you change your VSS, and get it working, the Transmission will start working again...

I am Assuming that the Transmission stopped working at the same time the Speedometer did? Is that right?

If it is, then this is a easy fix. 1 bolt and one Wire Connector and DONE....

Apr 04, 2013 | 2006 Dodge Magnum

2 Answers

1994 GRAND MARQUIS Odometer stopped working, tridometer aswell

If the odometer and tripmeter stop incrementing their mile values, then the VSS or vehicle speed sensor is bad or has become disconnected.

Vehicle Speed Sensor OPERATION The Vehicle Speed Sensor (VSS) is a magnetic pick-up sensor that sends a signal to the Powertrain Control Module (PCM) and the speedometer. The sensor measures the rotation of the transmission output shaft or the ring gear on the differential and sends an AC voltage signal to the PCM which determines the corresponding vehicle speed.
  1. Disconnect the negative battery cable.
  2. Disengage the wiring harness connector from the VSS.
  3. Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (ohmmeter function) between the sensor terminals. If the resistance is 190-250 ohms, the sensor is okay.
REMOVAL & INSTALLATION Fig. 1: Detach the connector for the VSS sensor 91194p27.jpg
Fig. 2: Remove the retaining bolt for the VSS sensor and . . . 91194p28.jpg
Fig. 3: . . . remove the VSS sensor from the transmission 91194p29.jpg
Fig. 4: Pry the retainer for the VSS gear off and . . . 91194p30.jpg
Fig. 5: . . . remove the gear from the VSS 91194p31.jpg
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle securely on jackstands.
  3. Detach the connector for the VSS.
  4. Remove the VSS retaining bolt and remove the VSS from the transmission.
  5. Remove the driven gear retainer and the drive gear. To install:
  6. Inspect the O-ring on the sensor and replace if necessary.
  7. Install the driven gear and the retainer.
  8. Place the VSS into the transmission.
  9. Tighten the retaining bolt to 98-115 inch lbs. (11-13 Nm).
  10. Attach the VSS electrical connector.
  11. Lower the vehicle.
  12. Connect the negative battery cable.
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Oct 23, 2010 | 1994 Mercury Grand Marquis

1 Answer

The automatic won't shift up to high or OD and speedometer quit working at the same time?

sounds like your vehicle speed sensor is broken. here is a tutorial from


The vehicle speed sensor is made up of a coil mounted on the transmission and a tooth rotor mounted to the output shaft of the transmission. As each tooth nears the coil, the coil produces an AC voltage pulse. As the vehicle speed increases the number of voltage pulses per second increases.


See Figure 1

  1. To test the VSS, backprobe the VSS terminals with a high impedance voltmeter (set at the AC voltage scale).
  2. Safely raise and support the entire vehicle using jackstands. Make absolutely sure the vehicle is stable.
  3. Start the vehicle and place it in gear.
  4. Verify that the VSS voltage increases as the drive shaft speed increases.
  5. If the VSS voltage is not as specified the VSS may be faulty.

0900c1528008f10b.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: Vehicle Speed Sensor (VSS) and vehicle speed signal buffer wiring diagram


See Figure 2

  1. Disconnect the negative battery cable.
  2. Disengage the electrical connection.
  3. Unfasten the sensor retainers.
  4. Remove the sensor and gasket or O-ring.

To install:
  1. Install the sensor with a new gasket or O-ring.
  2. Fasten the sensor retainers.
  3. Engage the electrical connections.
  4. Connect the negative battery cable.

0900c1528008f10c.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Vehicle Speed Sensor (VSS) location

Oct 13, 2010 | 1994 Chevrolet C1500

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